Fix documentation

[kerkelae]

Running Sphinx v7.2.6
making output directory... done

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/pygments/styles/__init__.py", line 45, in get_style_by_name
    mod = __import__(mod, None, None, [cls])
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ModuleNotFoundError: No module named 'pygments.styles.stata'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/cmd/build.py", line 293, in build_main
    app = Sphinx(args.sourcedir, args.confdir, args.outputdir,
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/application.py", line 272, in __init__
    self._init_builder()
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/application.py", line 342, in _init_builder
    self.builder.init()
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/builders/html/__init__.py", line 220, in init
    self.init_highlighter()
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/builders/html/__init__.py", line 283, in init_highlighter
    self.highlighter = PygmentsBridge('html', style)
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/highlighting.py", line 99, in __init__
    style = self.get_style(stylename)
            ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/sphinx/highlighting.py", line 116, in get_style
    return get_style_by_name(stylename)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/pygments/styles/__init__.py", line 47, in get_style_by_name
    raise ClassNotFound("Could not find style module %r" % mod +
pygments.util.ClassNotFound: Could not find style module 'pygments.styles.stata'.

Exception occurred:
  File "/home/docs/checkouts/readthedocs.org/user_builds/disimpy/envs/latest/lib/python3.11/site-packages/pygments/styles/__init__.py", line 47, in get_style_by_name
    raise ClassNotFound("Could not find style module %r" % mod +
pygments.util.ClassNotFound: Could not find style module 'pygments.styles.stata'.
The full traceback has been saved in /tmp/sphinx-err-upzt0duf.log, if you want to report the issue to the developers.
Please also report this if it was a user error, so that a better error message can be provided next time.
A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks!```